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Hydrogen has a henerys law constant of 1.07x10^-6 M/mmHg at 25 degrees celsius when dissolving in water. if total pressu of gas (H2 plus water vapor) over water is 1 atm. what is the concentration of gas phase hydrogen in (g/L)? note that the concentration of H2 in water (in solution) is 0.00159 g/L. and the vapor pressure of water T 25 degrees celsius is 23.8 mmHg
Solve for the temperature if there are 1.231 L of 0.5387 moles of nitrogen at a pressure of 731.2 mm Hg.
A compound contains only carbon, hydrogen, nitrogen and oxygen. Combustion of 0.314 g of the compound produced 0.426 g CO2, and 0.0620 g H2O.
Someday, cars may be powered by clean H2/O2 fuel cells and electric motors. Under standard conditions, such a fuel cell can develop 1.229 volts. If the oxygen is obtained from air (at P=0.21 bar), what pressure of H2 would be required to develop 1..
Ozone reacts with nitric oxide discharged from jet planes to form oxygen gas and nitrogen dioxide. 0.740g of ozone react with 0.670g of nitric oxide. Determine the identity and quantity of the reactant supplied in excess.
Calculate the expansion work done against a constant external pressure of 0.999 atm and at a constant temperature of 24°C. Assume that the initial volume of dry ice is negligible and that CO2 behaves like an ideal gas.
How many grams of sucrose (C12H22O11, 342.3 g/mol) would be needed to make 2.5 L of a solution with an osmotic pressure of 14 atm at 25°C? (R = 0.0821 L×atm/K×mol) A) 0.57 g B) 6.8 g C) 2.0 × 102 g D) 4.9 × 102 g E) 5.8 × 103 g
It is found for the reaction A + B > C that doubling the concentration of either A or B while keeping the other one constant quadruples the reaction rate. Write a rate law for the reaction
calculate the pH OF 100.0 mL of a bufer that is 0.050 M NH4Cl and 0.110 M NH3 before and after the addition of 1.00 mL of 5.75 M HNO3. before=9.59 after=
When lithium iodide is dissolved in water the solution becomes hotter. Why does the solution form? What drives the process
Using the following data, calculate the standard enthalpy of reaction for the coal gasification process 2C(s) + 2H2O(g) --> CH4(g) + CO2(g).
Acetylene burns in air according to the following equation. C2H2(g) + 5/2 O2(g) 2 CO2(g) + H2O(g) H0rxn = -1255.8 kJ Given that H0f of CO2(g) = -393.5 kJ/mol and H0f of H2O(g) = -241.8 kJ/mol, what is H0f of C2H2(g)
Calculate the heat capacity per gram of metal. Assume no heat is lost to the calorimeter or the surroundings. The specific heat capacity for water is 4.184 J/g
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